Electrically-controlled bag filling and weighing device.



W. R, DUNN. ELEOTRIOALLY CONTROLLED BAG PILLINQAND WEIGHING DEVICE.

APPLIGATIOH FILED 113.14, 1910.

mma 321112, 1912.

2 SHEETS-SHEET 1. M 1

m was i I "2mm a 2" Lam'- ,M awmasz "UNITE WILLIAM R.-DUI'-TN, or nnsroni. rnnnsrmvsnrn.

Specification of Letters Patent.

Application filed February is, 1910. Serial To all whom it may concern:

Be it known that I, WILLIAM R. DUNN, a citizen of the United States of America, re-

siding in Easton, in the county of Northempton, in the State of Pennsylvania, have invented a certain new and useful Improve ment in Electrically-Controlled Bag Filling and l/Veighing Devices, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part thereoi.

The object of the present invention is to provide an improved device for rapidly filling bags or like receptacles, one after another, each. with a definite and predetermined weight of a freely flowing material such as hydraulic cement.

My improved device is simple in construction and reliable in operation under the severe conditions of eperation experienced in filling longs with a material like hydranlic cement having a high specific gravity and flowing very freely, and which is put up in bags or packages or" substantial size. The invention is not limited to use under such conditions, however, but is well adapted for general use in filling bags or like receptacles with predetermined amounts of readily flowing material.

The various novel featiires 01"" construction and arrangement which characterizes my present invention are pointed out with particularity in the claims annexed to and forming a part of this specification. For a better understanding of the invention, how.- ever, and the advantages possessed by it, re erence should be had to the accompanying drawings and descriptive matter in which I have illustrated and described one of the invention may be em forms in which my bodied.

Cf the drawings, Figure 1 is an elevation, partly broken away and in section, of a de vice especially adapted for filling bags with hydraulic cement or the like materiel. Fig. 2 is an elevation, on a larger scale than Fig. 1, illustrating certain details of construction, and Fig. 31s a sectional. plan on .the line 3-2 f Fig; 1.

In the drawings, A represents the scale on which the material is weighed, A the plat-- form of the scale, B the scale rod, and C the scale beam. Above the scale platform is lo cated the delivery chute D havinga vertical depending nozzle portion D terminating at a suitable distance above the scale platform A. The escape of the material to hepaclraged from the nozzle D is controlled by a. gate or disk like valve the double E of which extend through, are guided an by, bearings .arried externally by the nozzle D. The valve is controlledhy a lever hiim'csted to straddle the nozzle D end having the inner end of each fork re ceived in e slot E in the corresponding 5 stem E. The lever F is journeled in I yoke G carried hy n bracket G secured to a stationary hag supporting -iernher which surrounds silower end of the nonzle D. To the outer end of the lever l is re pivots-lily connected lower end of vertically movable The lster pes. through and is l i x crecnei. ll

V a 'r cured to the (3111MB l"). e. spri c co about the rot T and ripper en ageinst the low end against n collar th. rod ll, supplements tl riding; to hold the i lower end oi? nozzle thereby close the "c latter.

A handle i serves es s means for lifting the red I to lower the open the lower e e of the chute nozzle l).

To hold the nte 'elve open while a 35 or the like being filled, means ere provide which comprises an armature i the ripper end of t q magnetla. The suitable position and nrmat' moved into den m line posix l. eleefiroinegnei when su. ehly ene will hold the srnis ture and rod up against the for ncrinelly I pulling them down. The energization the electrcinagne; l2: is'controllecl by the le henna C n suitahle manner. [is men, the circuit con nections he sen electrornegnei; source of c. conventionally indicated ice as a battery I uciuces e. switch comprising a stationary pin 'nn point contact and, a spring cents. N. A sliding reel (1* lS e the latter T5? out of engege-- "hereby opening the energizing cot the electromegnet K. lvleans, as a condenser inshunt to the contacts and ll, provided prevent injurious sparking between these contacts lie when they erctecl dei'inerggize the eleotroniagnee acted upon by the beam C, when hits, to more the conte ment with the contact iiiemiiei is (11 external i o secure the 1 pleas gm evideah into the resi- 9' i lines in Fig. mm to, Q) can 3 by lever Q5 against the eeri'ehetty the holder is force "the 3,, the member P w W from ti the hoiciev U1} w 127.1 flhc beg, time emmpeci a b the via,

holder disciosec'i, s not claimed h rein eppl eeoth,

e iteee is out in place on the scale pizza-cm Wiivh. leper end sepporteci he support I esc iesci'ioed the valve being I then c ed. The rod I then m.

" 1! to open the valve drops we Lo therea "-11 the material heing pcckogeci is o' substance like hydrouiic cemeni', which has a, high, specific gravity and flows almost as 'fyeeiy es Water, the force tending; to move ihe vaive into the cioseci position, Whether produced by an unbaiancing of the parts, or by a spring or by a combination of such or like means, shouid be substantial to in sin-e e quick and positive closure of the valve.

fa will he eppereni in il'lose skilled in the that one eitenciant may advantageously in some cesesopci'ete several filling and vveig? devices of the chm'acteiidcscribed, es ivieh. the hoiciing device described:

may be quickiy put in piece and 1C mcveci.

Iii: Wiii be apparent to those :5 flied in the m that the form a? apparatus disclosed is the spirit of p claims (1 to the particuiar form. of eppem isciosed more than is made necessary by zhe state of the loving new descriheci my invention, What claim new, and oiesii'e to secure by Let- Patent, is:

i Feceptacie filling; ice, che combination of TL scale for sup- :Liiig and weighing a receptacle to be fez; e-cieiivery chute adapted to discharge fl -do s11 "port-e5. by said scale, 2i

cci veive mechanism control- :mecnemsi'n 121cim,.mg a vaive, a levei for H same valve e si 1mg rod eonneci'gwi to s. d lever, e shr'cionary electronmgnes, on

ermemre connected iio sziid rod and moved izhezzehy when the valve is open into, and when veive is ciosedoui: of, a position in which the mm the electi'omegn etic attraction between and 'ishc armature is sufme he veive op n, and means v the Weighing some for de- .hromavgnec when ihe secie feeehcse precieterminmi to h " and Weighing yim'zfoi'm scale fling o receptacle -i chuie having decening ciiseti i'ge nozzle located above the piiet'fonn of said sea-fie, e velve for opening and Weighing one tending a0 ciose, said chute, said.

eeis eso a and closing the lower encl of said nozzle, a tromagnet and said armature is sufiicient to 10 lever for moving said valve, sliding i'ocl hold the valve open, and means controlled pivotally connected to said lever, a spring I by the Weighing scale for deenergizing the acting on the reel in a direction to close the i eleotromagnet when the Weight on the scale valve, a stationary eleetromagnet, an armaplatform reaches a predetermined amount. ture connected to said rod and movable WILLIAM R. DUNN. when the valve is open into, and when the Witnesses: valve is closed out of, a position in which HARRY G. SEIP, the magnetic attraction between said eleci ORRIN SERFAss. 

